Answer to Question #247060 in C for Shoaib

Question

Write a C program that prompt a user to input radius and calculate the circumference of the circle.

Answer 1

#include <stdio.h>
#define PI 3.1415926

int main() {
    double r;
    double circum;

    printf("Eneter a radius: ");
    scanf("%lf", &r);
    circum = 2.0 * PI * r;
    printf("The circle circumference is %lf\n", circum);

    return 0;
}